Bug workaround for (undocumented?) autoload change in PHP 5.3.?

Our local vanilla 5.3.8 always receives classes for autoloading fully-qualified without leading slash (as written in the PHP doc), but a customers 5.3.2-1ubuntu4.18 sometimes receives it with an leading slash. Simple way of handling that, breaks nothing and normally won't affect anything.
wrapped in curly braces
Annoying and pointless
Merge pull request #1129 from PhrozenByte/bug/AutoloadLeadingSlash

Bug workaround for (undocumented?) autoload change in PHP 5.3.?